EP 3064984 A1 20160907 - DISPLAY DEVICE
Title (en)
DISPLAY DEVICE
Title (de)
ANZEIGEVORRICHTUNG
Title (fr)
DISPOSITIF D'AFFICHAGE
Publication
Application
Priority
- JP 2013224174 A 20131029
- JP 2014068466 W 20140710
Abstract (en)
In a display device (1), a light amount of laser light (L) directed from an optical filter (21) to a combiner (5) is controlled through control of a temperature of a light source (13) using temperature dependence of a wavelength of the light source (13). Accordingly, even when the display device (1) is a scanning projection type in which the combiner (5) itself is incapable of luminance adjustment, it is possible to adjust the amount of light directed to the combiner (5) according to the brightness of environmental light, and to satisfactorily ensure the visibility of a projection image displayed on the combiner (5). Further, in the display device (1), since the adjustment of the light amount is performed using the temperature dependence of the wavelength of the light source (13) instead of adjusting a power supply voltage of the light source (13), it is possible to accurately adjust the light amount of the laser light (L) directed to the combiner (5).
IPC 8 full level
G02B 27/01 (2006.01)
CPC (source: EP KR US)
G01J 1/4204 (2013.01 - KR); G02B 27/0101 (2013.01 - EP KR US); G02B 27/104 (2013.01 - US); G02B 27/141 (2013.01 - KR); G02F 1/0147 (2013.01 - EP US); H01S 5/18366 (2013.01 - KR); H04N 9/3135 (2013.01 - US); H04N 9/3164 (2013.01 - US); H04N 9/317 (2013.01 - US); H04N 9/3194 (2013.01 - US); G02B 2027/0114 (2013.01 - US); G02B 2027/0118 (2013.01 - EP US); G02B 2027/013 (2013.01 - US); G02B 2027/014 (2013.01 - US); H04N 9/3155 (2013.01 - US); H04N 9/3158 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3064984 A1 20160907; EP 3064984 A4 20170712; EP 3064984 B1 20181114; CN 105683811 A 20160615; CN 105683811 B 20180417; JP 2015087463 A 20150507; JP 6285145 B2 20180228; KR 102268967 B1 20210623; KR 20160078990 A 20160705; TW 201516475 A 20150501; TW I627445 B 20180621; US 2016255319 A1 20160901; US 9769445 B2 20170919; WO 2015064154 A1 20150507
DOCDB simple family (application)
EP 14859282 A 20140710; CN 201480059032 A 20140710; JP 2013224174 A 20131029; JP 2014068466 W 20140710; KR 20167012616 A 20140710; TW 103124584 A 20140717; US 201415032342 A 20140710